Sanitary and temperature-insulating jacket for milk cans



July 3, 1923. 1,460,461

w. A. WEST SANITARY AND TEMPERATURE INSULATING JACKET FOR MILK CANS Filed Oct. 4. 1920 1.715 A TTORNE Y6:

' July 3, 1923.

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Application filed. October 4, 1920. Serial No. 414,419.

tain new and useful Improvements in Sanitary and Temperature-Insulating Jackets for Milk Cans, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

The purpose of this invention is to pro-- vide an improved jacket for the protection of milk cans or the like for sanitary purposes and insulation against exterior temperature. It consists in the elements and eatures of construction shown and described as indicated in the claims.

In the drawings: Figure 1 is an elevation of a milk can enclosed in a jacket embodying this invention. Figure 2 is a section at the line, 2-2, on

Figure 1.

Figure 3 is a view of the upper portion of the jacket and can, looking in the direction as indicated by the arrow on Figure 1.

Figure 4 is a detail view showing more clear y the flap 5 and hole 4.

The jacket which constitutes this invention is of the nature of a hood or cap or inverted bag having a closed top and an open bottom and adapted to. be applied to and removed from the milk can from above, as may be understood from Figure 1 of the drawings. The essential character of the jacket is that it consists of an inner and an outer layer of waterproofed fabric, indicated at 1 and 2 in Figure 2, and an interposed layer of paper, 3, the three layers being secured together at marginal and junctional seams the paper layer being loose between the other two layers, except as held in position by the seams, no cement or other means for closel securing the layers t9- gether be' emp oyed, buton the contrary, air layers ingretained. between the two fabric layers and the intermediate paper layers. he fabric layers are, as stated, thoroughly waterproofed by boiling the fabric in paraffine, so that they are not only impervious to moisture in an ordinary sense, but are susceptible of being cleaned with soap and water or other means'for removing impurities, and may be scrubbed without defeating their waterproof character or' otherwise impairing the jacket for its purpose. By this means the jacket is made so that it can be kept in thorough sanitary condition, free from impurities both inside and outside, though subject to becoming soiled upon the exterior but so that it can be readily cleansed upon each instance of removal and ire-application to the can while at the same time, an almost perfect insulation against exterior temperature obtained by virtue not only of the waterproof emd thereby substantially air-proof,--character of the interposed paper layer, and by the double-air layers which are confined between the three layers.

The jacket has apertures, 4, 4, for the can handles, and flaps, 5, continuous with the fabric of the jacket at the upper side of the handle apertures and adapted to be tucked through the handles to close the apertures after the handles have been inserted therethrough, that is, closing all the remainder of the aperture not occupied by the handle shanks. At the bottom, and also at the zone of the handle apertures, loops, 6, 6, are provided for girding bands, 8, and 9, which may be either straps or ropes, and adapted to be provided with means for drawing them tightly to bind the jacket to the can at the two zones to which they are applied; whereby an air layer is confined between the jacket and the can body, defeating the possibility of exterior air circulation through this space.

I claim 1. A jacket adapted to enclose a milk can or the like, made of an innerand outer layer of waterproofed textile fabric and a loosely-interposed layer of paper, all the layers being secured together at marginal and seam lines; whereby air layers are retained between the waterproofed layers and the paper layer, the layers being all of such thinness and looseness of relation to each dles are entered therethrough, and having 10 other as to render the jacket as a Whole means for positioning'and retaining girdfiexible and collapsible. ing bands at the bottom and at the zone of 2. A can jacket of the character defined the handle openings.

5 in claim 1 foregoing, having a closed top In testimony whereof, I have hereunto and an open bottom, and adapted to be apset my hand at Chicago, Illinois, this 30th 16 plied and removed from above, said jacket day of September, 1920. having apertures for the can handles and flaps to close said apertures after the han- WALTER A. WEST. 

